Charlemagne and Glimmer meet and become friends.
Mule takes a deeper
journey within the Dark Dominion to meet the "Dark Lord Bottom" who
promise
to use his power to help Mule become part of the "hard world"
again.
Lord Bottom omits some information to Mule and actually uses
Mule's body as a conduit to enter the "hard world" himself. Mule is
left
painfully floored by the event. One of Mule's servants tracks down
Glimmer
to help Mule.
Meanwhile, Lord Bottom also seeks Glimmer in the "hard world", but
finds Charlemagne instead. Charlemagne takes offense with Lord Bottom's
ramblings and they fight.

Glimmer eventually finds Mule dying and theorizes
that taking Mule back
to the Dark Dominion might just save him. Mule protests. Glimmer
ignores
Mule's protest. Glimmer drags Mule back to the Dark Dominion and saves
his life. Mule resents it greatly saying "Back here I feel nothing! Any
feeling in the hard world, even agony, is better than this emptiness!"
Mule kills his servant that meant to help him. Glimmer wanders
off.

Lord Bottom is pulled back into the Dark Dominion
as he loses to Charlemagne.
Most likely, Lord Bottom was pulled back because Mule, his conduit, was
pulled back. Lord Bottom does not understand why he got pulled back,
but
when he returns Mule is very angry. The story ends with a very changed
"Dark Lord Mule" sitting in a throne.